/* Navigation uses the game's restrained, spaced interface typography. */
.topbar .primary-nav a,
.system-tabs button {
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .1em;
  text-transform: uppercase;
  white-space: nowrap;
}
.topbar .primary-nav {
  gap: clamp(18px, 1.8vw, 28px);
}
.topbar .primary-nav a {
  position: relative;
  padding: 16px 0;
  color: #c4cdd1;
  text-decoration: none;
  transition: color .18s ease;
}
.topbar .primary-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 2px;
  background: var(--amber, #ffbc4b);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s ease;
}
.topbar .primary-nav a:hover,
.topbar .primary-nav a:focus-visible,
.topbar .primary-nav a.active { color: #f3f5f4; }
.topbar .primary-nav a:hover::after,
.topbar .primary-nav a:focus-visible::after,
.topbar .primary-nav a.active::after { transform: scaleX(1); }
@media (min-width: 761px) and (max-width: 1100px) {
  .topbar .primary-nav { gap: 12px; }
  .topbar .primary-nav a, .system-tabs button { font-size: 12px; letter-spacing: .06em; }
}
@media (min-width: 761px) and (max-width: 900px) {
  .topbar .primary-nav { gap: 8px; }
  .topbar .primary-nav a, .system-tabs button { letter-spacing: .03em; }
}
@media (max-width: 760px) {
  .topbar .primary-nav { gap: 0; }
  .topbar .primary-nav a { font-size: 14px; padding: 18px 0; }
  .topbar .primary-nav a::after { right: auto; width: 28px; bottom: 8px; }
  .system-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12px; }
  .system-tabs button { font-size: 14px; padding: 16px 8px; text-align: left; }
  .legal-header .primary-nav { gap: 16px; }
  .legal-header .primary-nav a { font-size: 12px; padding: 14px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .topbar .primary-nav a, .topbar .primary-nav a::after { transition: none; }
}
/* Keep the expanded homepage menu usable on narrower laptops and tablets. */
@media (min-width: 761px) and (max-width: 1200px) {
  .kit-navigation .mobile-toggle { display: block; margin-left: auto; border: 1px solid var(--line); background: transparent; padding: 4px 9px; font-size: 19px; }
  .kit-navigation .primary-nav { display: none; position: absolute; top: var(--header); left: 0; right: 0; background: var(--panel); margin: 0; padding: 15px 7%; border-bottom: 1px solid var(--line); max-height: calc(100svh - var(--header)); overflow-y: auto; }
  .kit-navigation .primary-nav.open { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
  .kit-navigation .primary-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
}
/* 2026-10-27: highlighted "Alpha" item in the main navigation (all pages). */
.topbar .primary-nav a.nav-alpha { color: var(--amber, #ffbc4b); }
@media (min-width: 761px) {
  .topbar .primary-nav a.nav-alpha { padding: 8px 14px; border: 1px solid var(--amber, #ffbc4b); border-radius: 2px; }
  .topbar .primary-nav a.nav-alpha::after { display: none; }
  .topbar .primary-nav a.nav-alpha:hover, .topbar .primary-nav a.nav-alpha:focus-visible { background: var(--amber, #ffbc4b); color: #192126; }
}
@media (min-width: 761px) and (max-width: 1200px) {
  .kit-navigation .primary-nav a.nav-alpha { padding: 14px 0; border: 0; border-bottom: 1px solid var(--line); }
}